Padlock.



PATENTBD SEPT. 19,1905.

W E. REMBERT.

PADLOGK.

APPLIOATION FILED SEPT. 28, 1904.

UNITED STATES PATENT oFFIon.

PADLOCK- Specification of Letters Patent.

Patented Sept. 19, 1905.

Application filed September 28, 1904:. Serial No. 226,332.

T 00% whom it may concern:

Be it known that I, WILLIE E. REMBERT, a citizen of the United States, residing at Longstreet, in the county of Montgomery and State of Texas, have invented new and useful Improvements in Padlocks, of which the following is a specification.

My invention relates to padlocks, and has for its object to provide a lock which cannot be picked and which shall be strong and simple in construction.

In the accompanying drawings, Figure 1 is a vertical section of the invention. Fig. 2 is a horizontal section on the line 2 2 of Fig. 1. Fig. 3 is a horizontal section on the line 3 3 of Fig. 1. Fig. 4 is an end view. Fig. 5 is a perspective view of the key and a portion of the bolt, showing how the latter is with drawn.

Referring specifically to the drawings, 7 denotes the lock-casing. This is preferably a solid block of metal suitably bored to receive the various parts to be hereinafter described. The shackle is indicated at 8, being of the usual form and fitting in sockets made in the block 7. The long leg 9 of the shackle has a notch 10 on one side to receive the bolt 11, and in the bottom of the socket containing said leg 9 a coiled spring 12 is placed, which presses against the leg and forces it .outwardly when the bolt 11 is withdrawn,

whereby the short leg 13 of the shackle is released, permitting the same to be swung around to open the lock. To prevent the shackle from being withdrawn entirely from the lock-casing, a pin 14, extending through the latter, passes through a notch 15 in the leg 9. At the lower end of the notch 15 a circumferential groove 16 is made in the leg to permit turning of the shackle when it is open, the pin 14 then fitting in said groove.

The bolt 11 fits in a socket 17, extending at substantially right angles to the le 9, and the keyhole 18 extends at substantial y right angles to said socket, it being separated therefrom by a partition 19. A spring 20 in the socket 17 behind the bolt presses the same normally outwardly into the notch 10. The socket 17 can be made by boring from the outside of the casing across the shacklesocket, the hole between said socket and the outside of the casing being closed by a screwplug 21 after the spring 20 and bolt 11 are placed in position, after which the outer end of the plug is filed off flush with the outside of the casing The bolt 11 has a flat rearward extension 22, passing through a slot in the partition 19 and into the keyhole 18. The key 23 is flat, as shown, and has notches 24, in either one of which the extension 22 catches when said key is turned, the outer end of said extension beingfiared, as at 25. The bolt is thus with drawn from the notch 10 of the leg 9 to release the shackle. The keyhole is fitted with a two-part bushing 26, which forms a narrow key-slot. Ward-grooves 27 are formed in the bushing to receive corresponding projections on the key to permit its turning. The extension 22 projects into the key-slot a little to one side and into the path of the key when it is turned, said extension being caught by the key when it is turned, as heretofore described. The bushing-pieces have longitudinal ribs 28 on the back thereof, which ribs fit in grooves made in the wall of the keyhole. These ribs extend beyond the main body of the bushing on both ends thereof, the extension on one of the ends fitting in holes made in the bottom of the keyhole. The'extensions on the other ends fit behind a plug 29, which is threaded and screws into the keyhole near the mouth thereof. This construction securely fastens the bushing in the keyhole.

The plug 29 is slotted to receive the key, and

a disk 30 fits loosely on this plug, which disk is also slotted to receive the key and is revoluble, thereby being turned until its slot registers with the slot in the plug, after which the key can be extended into the key-slot. A flat ring 31 fits on the disk 30, said ring being secured in a counterbore 32, made at the mouth of the keyhole.

The parts above described are all simple, and the lock can therefore be cheaply made and sold, and as the casing is a solid block the lock will be strong and durable. The lock can be readily changed by changing the wards and also by changing the width of the extension 22.

Having thus described my invention, What is claimed as new, and desired to be secured by Letters Patent, is

1. In combination, a padlock 'casing; a shackle having a locking-notch; a bolt to engage the notch, said bolt having a rearward extension provided with a flaring end; and a key having a notch to receive the extension, the walls of saidnotch engaging behind the flaring end to withdraw the bolt.

2. A padlock comprising a casing; a

shackle having a locking-notch; a socket in the casing extending at substantially right angles to the shackle; a keyhole in the casing extending at substantially right angles to the socket; a partition between the keyhole and the socket; and a bolt in the socket to engage the shackle, said bolt having a flat rearward extension passing through the partition into the keyhole, and said extension having a flaring end for engagement by a key.

3. The combination in a lock, of a wardbushing fitting in the keyhole, said bushing having longitudinal ribs on the back thereof and extending beyond each end, and fitting 

